android - 将 ComposeView 添加到 PopupWindow 的 contentView 崩溃

Question

我正在尝试显示 PopupWindow来自 Fragment ，然后添加 ComposableView到弹出窗口contentView ，它崩溃是因为 ViewTreeLifecycleOwner未找到 PopupDecorView$PopupDecorView .
我尝试过的事情:

使用 PopupWindowCompat显示弹出窗口。

Fragment 的多个库版本(1.3.4 和 1.4.0-alpha1)。

Activity我使用的版本是:1.3.0-alpha08。

手动设置 contentView 的生命周期所有者和 ComposeView .

来电:
添加 ComposeView至contentView :

 contentWindow.contentView.addView(
                AdaptiveCardistRender.adaptiveCardistResponseView(
                    contentWindow.contentView.context,
                    response
                )
            )

显示弹出窗口:

PopupWindowCompat.showAsDropDown(
                popupWindow,
                anchor,
                0,
                startVerticalOffset,
                Gravity.NO_GRAVITY
            )

在 PopupWindow 上设置生命周期:

class ExtensionsPopupWindow(
    val contentView: ScrollView,
    width: Int,
    height: Int,
    lifecycleOwner: LifecycleOwner,
    savedStateRegistryOwner: SavedStateRegistryOwner,
) : PopupWindow(contentView, width, height, true) {

    init {
        ViewTreeLifecycleOwner.set(contentView, lifecycleOwner)
        ViewTreeSavedStateRegistryOwner.set(contentView, savedStateRegistryOwner)
    }

堆栈跟踪:

    java.lang.IllegalStateException: ViewTreeLifecycleOwner not found from android.widget.PopupWindow$PopupDecorView{9dfea2f V.E...... R.....I. 0,0-0,0}
        at androidx.compose.ui.platform.WindowRecomposer_androidKt.createLifecycleAwareViewTreeRecomposer(WindowRecomposer.android.kt:242)
        at androidx.compose.ui.platform.WindowRecomposer_androidKt.access$createLifecycleAwareViewTreeRecomposer(WindowRecomposer.android.kt:1)
        at androidx.compose.ui.platform.WindowRecomposerFactory$Companion$LifecycleAware$1.createRecomposer(WindowRecomposer.android.kt:98)
        at androidx.compose.ui.platform.WindowRecomposerPolicy.createAndInstallWindowRecomposer$ui_release(WindowRecomposer.android.kt:153)
        at androidx.compose.ui.platform.WindowRecomposer_androidKt.getWindowRecomposer(WindowRecomposer.android.kt:228)
        at androidx.compose.ui.platform.AbstractComposeView.ensureCompositionCreated(ComposeView.android.kt:200)
        at androidx.compose.ui.platform.AbstractComposeView.onAttachedToWindow(ComposeView.android.kt:235)
        at android.view.View.dispatchAttachedToWindow(View.java:20665)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3493)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3500)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3500)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3500)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2544)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:2057)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:8501)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1005)
        at android.view.Choreographer.doCallbacks(Choreographer.java:826)
        at android.view.Choreographer.doFrame(Choreographer.java:761)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:990)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loopOnce(Looper.java:201)
        at android.os.Looper.loop(Looper.java:288)
        at android.app.ActivityThread.main(ActivityThread.java:7727)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:975)

Answer 1

默认情况下，PopupWindow 不能与 compose 一起使用。
compose 需要做一些设置才能找到:

内容子

ViewTreeLifecycleOwner,

ViewTreeSavedStateRegistryOwner。

这是一个示例，说明如何在弹出窗口内使用撰写 View 显示来自撰写的弹出窗口。
(最重要的部分是parentView)

val composeView = ComposeView(LocalContext.current).apply {
    setContent {
        // your composables
    }
}
val parentView = FrameLayout(LocalContext.current).apply {
    // Help compose to find View.contentChild
    id = android.R.id.content
    // Help compose to find ViewTreeLifecycleOwner
    ViewTreeLifecycleOwner.set(this, LocalLifecycleOwner.current)
    // Help compose to find ViewTreeSavedStateRegistryOwner
    ViewTreeSavedStateRegistryOwner.set(this, LocalSavedStateRegistryOwner.current)

    layoutParams = FrameLayout.LayoutParams(
        ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT
    )
    addView(composeView)

}
val popupWindow = PopupWindow(
    parentView, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT
)

popupWindow.showAtLocation(LocalView.current, Gravity.CENTER, 0, 0)

DisposableEffect(Unit) {
    onDispose {
        popupWindow.dismiss()
    }
}

如果您从 Activity 中执行此操作，请替换 LocalLifecycleOwner.current , LocalSavedStateRegistryOwner.current和 LocalContext.current通过你的 Activity 。